E: both B and D. The automobile and the mass assembly line
Answer:
read part 20 in the paragraph
Answer:
D. 4.5 billion years
Explanation:
Scientists study meteorites to determine the age of our solar system, since they are the oldest accessible material out there. Earth itself has rocks that are over 4 billion years old.
In recent times, meteorites have informed our view of, and our priorities about, what spacecraft – and perhaps, one day, human explorers – might find on Mars and other planets. And we now recognize that a cosmic delivery of life with an independent origin from our own would revolutionize our ideas about the extent of life throughout the whole known Universe.
The Great plains, not sure why honestly.
Military leader with the real power in Japanese government (instead of the Emperor). This system was established by Minamoto Yoritomo as part of the Bakufu. Military style government set up by Yoritomo Minamoto in which the Shogun, a military leader, is in charge of the government.
